Home / 283,038.82-390,431.37-176,870.50

Finding the Fourth Proportional to 283,038.82, 390,431.37 and 176,870.50

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Solution

The fourth proportional to 283,038.82, 390,431.37 and 176,870.50 is: 243,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,038.82 : 390,431.37 = 176,870.50 : x
  2. Step 2: Convert to fraction form
    283,038.82/390,431.37 = 176,870.50/x
  3. Step 3: Cross multiply
    283,038.82x = 390,431.37 × 176,870.50
  4. Step 4: Simplify right side
    283,038.82x = 69,055,791,627.59
  5. Step 5: Solve for x
    x = 69,055,791,627.59/283,038.82
  6. Step 6: Final answer
    x = 243,979.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.